This thesis contains a thermal calculation of a powder coating oven for large machine parts with maximum dimensions 2,7 x 3,6 x 6 m. Heating is provided by a 110 kW gas burner and an appropriate heat exchanger. Mass flow of hot air, needed for heating the powder coated metal weldment to an appropriate temperature – 180 °C in a short time is determined. Furthermore, heat losses and temperature expansions of steel beams are defined for the working temperature of the oven. There are also some design solutions regarding high temperature, sealing and temperature expansion.
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